What did the Byzantine Empire struggle with just before the powerful rise of the Ottoman Empire?

Tension between the british. and boers was caused primarily by what things?

What explains the increase in life expectancy in botswana? a. the increased availability of jobs and an improved economy b. access to antiretroviral drugs, hiv/aids education, and widespread hiv/aids testing c. a series of military takeovers that stabilized the political system and led to education reform and increased literacy rates d. a recent military coup that led to an improved healthcare system select the best answer from the choices provided.

How have changes in transportation affected washington, d.c.